I think that’s a fantastic idea. I’ve thrown together some JS to do this. It’s available here. As a happy bonus, it allows for a range of sentences and it doesn’t require a page reload to highlight parts. The sentence selection, however, is terrible. So if anyone has any suggestions, please fork and put in a pull request.
My code does allow highlighting some stuff while jumping to another part, which I think is pretty neat. That is, “Read starting here, but really pay attention to this.”
(Also, Ken: No, you’re a nerd)